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Lala66

Posted - 21 févr. 2012 : 20:09:04 Sorry for asking such a basic question but I am not experienced in this field. I have a Nexus S Android phone. I travel to cities in other countries and do not have cell phone service or wifi, no data connection at all. But I do download maps in advance and store them in the phone.

How can I use the GPS and stored maps to determine my location? Can I do this without a data connection? Is there software that will handle his? Surely the stand alone GPS units do not need a data connection. My need is simple, to have my location displayed on my phone using GPS. Thanks!

7 L A T E S T R E P L I E S (Newest First)

Mazarin07

Posted - 10 déc. 2012 : 21:15:26

quote:Originally posted by Lala66

How can I use the GPS and stored maps to determine my location? Can I do this without a data connection? Is there software that will handle his? Surely the stand alone GPS units do not need a data connection. My need is simple, to have my location displayed on my phone using GPS. Thanks!

You need an off-line navigation software, like iGo or NavFree...

gpspassion

Posted - 23 févr. 2012 : 13:47:45 Current GPS systems (since SiRFStarII in 2002 actually and even more so since 2005 with SiRFStar III) have enough correlation power to ignore the almanac (in essence telling the chip where to search for the signals), what does help is getting predictive ephemeris data but I'm not sure the Nexus is configured for that like my HD2 is. Free apps like GPS Test or GPS Status can download that data (they call it AGPS data), it's free to try.

gpsmapper

Posted - 23 févr. 2012 : 13:23:05 It may help to use GPS where you do have a good signal, immediately before traveling, so that you fully download the satellite almanac. Also, to cut battery use, disable the cellular radio. Dazzle (Android Market) is a widget that can do this.

Anyway, getting a GPS position on a standalone basis won't be a problem, it will just take a bit longer each time you don't use it for a few hours (warm fix).

JoWhee

Posted - 23 févr. 2012 : 12:39:34 Locus from the market, you can download offline vector maps, save them to your device, and then no data is required.

Lala66

Posted - 22 févr. 2012 : 21:10:49 Thanks for your reply. I have been using Google Maps and Google Maps in the satellite mode. I live in northern China but travel around Asia. I use that new feature with Google Maps which lets me cache the maps for future use. I will give it another try then, thanks!

gpspassion

Posted - 22 févr. 2012 : 20:08:19 Sure, GPS works without anything else, it will just take a bit more time to get the position the first time. What maps have you downloaded?